Function nrfxlib_sys::ocrypto_chacha20_poly1305_update_dec

pub unsafe extern "C" fn ocrypto_chacha20_poly1305_update_dec(
    ctx: *mut ocrypto_chacha20_poly1305_ctx,
    m: *mut u8,
    c: *const u8,
    c_len: usize
)

ChaCha20-Poly1305 incremental decoder input.

The generator state * ctx - is updated to include a ciphertext chunk * c - .

This function can be called repeatedly on arbitrarily small chunks of the ciphertext until the whole ciphertext has been processed.

• ctx - Generator state.
• m - Decoded message. Same length as received ciphertext.
• c - Ciphertext chunk.
• c_len - Length of * c - .

@remark Initialization of the generator state * ctx - through * ocrypto_chacha20_poly1305_init - is required before this function can be called.

@remark * ocrypto_chacha20_poly1305_update_dec - must be called after any call to * ocrypto_chacha20_poly1305_update_aad - .

@remark * m - may be same as * c - .